\beginsection{7.2}

For each sequence in Exercise 7.1, determine whether it converges.
If it converges, give its limit.
No proofs are required.

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(a) $s_n=1/(3n+1)$ converges to 0.

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(b) $b_n=(3n+1)/(4n-1)$ converges to $3\over4$.

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(c) $c_n=n/3^n$ converges to 0.

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(d) $\sin(n\pi/4)$ does not converge.
